Analysis Of Finlines On Biaxial Anisotropic Dielectric
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An analysis of finlines on layered biaxial aniso-tropic dielectric substrate using the finite element method is developed. The spurious modes are eliminated by imposing the restriction ∫Ω∇.Η2dΩ = 0 to the used functional with a consequent reduction of matrix size of the resultant eigenvalue problem. The basic formulation is presented and the eigenvalue equation for the calculation of the effective dielectric constant is given.